Rotary valve.



E. E. MOORE. ROTARY VALVE.

APPLICATION FILED AUG. l8| I913.

Patented July '13, 1915.

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E. E. MOORE.

ROTARY VALVE.

APPLICATION FILED AUG; 18. ms.

Patented July 13, 1915.

3 SHEETS-SHEET 2 l/Vl/E/VTOR tTf/Voore WITNESSES. 'M M ATTORNEY E. E. MOORE. ROTARY VALVE. APPLICATIbN FILED A'UGJS. 1913. I 1,146,644 1 v Patented July 13, 1915.

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a rarit -or ROTARY VALVE;

a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings,-and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to rotary valves, and

more particularly to a valve for controlling timing the exhaust.

the intake and exhaust to and from the cylinders of explosive engines, the principal object of the invention being to provide positive mechanism for properly timing and controlling the volume of the intake In carrying out my invention I have pro; vided improved details of stri cture, the preferred form of which comprises double or opposite ports so that the charges are admitted and; exhausted simultaneously from opposite sides of the "cylinder, in order to balance the cylinder and relieve same from strain due tothe unequal heating of the walls, present in engines wherein the charge and burnt gases are either admitted and discharged from the same side of the cylinl Figs. VII and VIII are diagrams showing der, or from opposite sides, with the result that the temperatures vary at widely separated parts of the cylinders, and the cylinder expands and contracts unequally.

The embodiment of the invention also comprises other improved details of structure, the preferred forms of which are illustrated in the accompanying drawings, wherein Figure I is an end elevation of an explosive engine equipped with a rotary valve constructed according to my invention. Fig. II is a front view with part of the water jacket removed to illustrate the arrangement and partial construction of the valve and its'mounting.- Fig; III is a plan View of the parts shown in Figs. I and II. Fig.- IV is a central longitudinal section of same. Fig. V is a transverse section on the line VV, Fig. IV. Fig. VI is a detail section showing the connection between the inner and outer water-jackets or valve housings.

Specification of Letters ream. rag e July 135, 1915', Application filed August is, 1.913% Serial No. 785,225. I i

the relative positions of the crank shaft and valve mechanism, throughout the four cycles.

Referring more in detail to the parts 1 designates the engine cylinder which I is mounted on .a crank housing 2 and contains theusual piston 3 having a rod 4: connected with the crank. shaft 5 of the engine. p

The present cylinder has anintake port 7 and exhaust port 8 near its outer end, or preferably the paired. ports, as shown, so that the intake and exhaustare paired to obviate strain and friction, theports being arranged.

near the end of the cylinder and provided with interior channels '9 which are curved downwardly so that the charges are delivered into rather than across the cylinder,

and so that the exhaust, may fiow 'freely to the outlet and thereby insure more perfect cleaning of the cylinder. provided with the usual spark plug 11. for insuring ignition after. the, charge has been admitted and compressed, althotghno inll vention 1S clalmed on the use or construction of such a plug in the pres nt device. I

The cylinder lhas an, annular flange 13 on its outer face upon which a gear cup 1 is fixed by bolts 15, and mounted; on said cup is a valve case 16 having inlet and exhaust conduits 1718 registering with the inlet and exhaust ports 7.8 of the cylinder, the upper end of thecase being turned inwardly at the top, and rigidly secured to the. cylinder by bolts 19 which extend through the top of the case into bosses 20' at the upper edge of the cylinder, the valve case being spaced The cylinder is from the outer face cfthe cylinder to provide an annular channel 21 within which the inlet in order to give the engine suflicient the valve port remains in communication I wlth the exhaust ports longer than with the time to clean. The valve fits snugly within the annular channel 21 but is adapted for free revoluble movement therein, the body of the valve being provided with teeth 2% on its lower edge which mesh withteetli-Zh on the upper edge of the ring 26 of an annular gear wheel 27 that is located in the cup I l on the cylinder flange I3, so that the valve is supported and operatively connected with the gear wheel, although free to be lifted outwardly therefrom when theengine is to be taken apart.

The gear wheel 27 meshes with a pinion;

28- of one-fourth its diameter, that is revolubly mounted in an extension case 29 on the gear cup 14,. and rigidly fixed to a shaft charge within the cylinder to condition it 1 plosion,

' proper exhaust of the burned gases, the

copies of'this patent may be obtained for 30 which extends through said case, and into a cap 31 therefor on the valve case 16, the shaft 7 30- being operatively connected through gearing and pinion mechanism 32 with a timing shaft 33 which is driven from the main crank shaft through spur gear wheels 34: and 35 of equal diameter.

In using the valve, presuming the parts to be constructed and assembled, as de-.

scribed, when the engine is not in operation,

the; valve is revolved within its channel so that its paired ports are brought into communication with the inlet ports or conduits, and in order that charges of vapor may be delivered into the interior of the cylinder, the gradual, although rapid, communication providinga gradual admission of the vapor to the cylinder and thereby assisting in providing a smooth and steady operation. As

soon as the charge is admitted, continued I revolution of the valve shuts off the intake, so that return of the piston compresses the for the explosion which takes place at the proper instant and is induced by a spark from the plug. Immediately after the exthe valveport comes into communication with the exhaust ports of the cylinder and casing so that the burned charge may be forced out of the cylinder by thecleaning stroke of the piston, the valve rema ning in communication with the large exhaust ports a suflicient time to provide for spacing and timing of the various operations being indicated in the diagrammatic figures. VII and VIII, in which it will be seen that- .The mechanical equivalent of this arrangement is seen in Fig.- V where the width tion.

five cents each, by addressing the Commissioner Washington, .D. G."

of the port 23 of the and one-fourth degrees less than the width of that portion of the cylinder wall lying between the adjacent inlet and exhaust ports '7 and 8.

valve sleeve 22 is one It is apparent from the foregoing description, and from the-illustrationathat certain modifications may be made, such as making the ports square, providing other,

well known bearin s for the gear ring and valve, connection etween the valve and gear ring, etc., the present illustration being understood as a preferred form of construc- 1.'The combination with an engine cylinder, of a cup mounted on the cylinder, a valve case mounted on the cup to form an annular chamber and spaced from the cylinder to form an annular channel, a gear ring mounted in the cup and having teeth in its upper edge, a valve cylinder mounted in the channel and having teeth on its lower edge meshing with the teeth on the upper edge of the gear, and means for driving. said gear, the cylinder case and valve being provided with suitable ports, for the purpose set forth.

2. The combination with an engine cylinder having a plurality of intake and exhaust ports and having an annular flange on its outer face, a cup mounted on said flange, a valve case mounted on said cup and having its outer end overlying the end of the cylinder, the-body of the. case being spaced laterally from the cylinder to form an annular channel, means for fixingthe case to the cylinder, a gear ring revolubly mounted in said cu ject'ed mto said. channel, a valve cylinder revolubly mountedin the channel and having a port adapted for registration with the intake and exhaust ports of the cylinder and case and. operatively connected with the toothed flange of saidgear ring, a pinion, meshing with the gear ring, and means for and having a toothed flange prodriving said pinion from the crank shaft to the cylinder.

In testimonywhereof I aifix' my signature in presence of two witnesses.

EVERETT E. MOOREL Witnesses:

ARTHUR W. CAPS, Lara E. COATS.

of Patents, 

